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DNS lookup

Everything DNS says about a domain: traced from the root servers down, every record type asked of the domain's own nameservers, each nameserver checked, then every hostname and policy record it points at followed, with SPF, DMARC, DKIM and DNSSEC checked along the way.

Try example.com, gmail.com, www.github.com, dnssec-failed.org, 1.1.1.1. A URL, e-mail address or IP address works too.

45.54.99.129

129.99.54.45.in-addr.arpa

Zone 99.54.45.in-addr.arpa186 queries in 3.4 s2026-11-09 06:11:04 UTCNot DNSSEC-signed

  • Warning ns01.amcndns.com (45.54.99.1) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns01.amcndns.com (2607:f740:e05a::1) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns01.amcndns.net (45.54.99.1) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns01.amcndns.net (2607:f740:e05a::1) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns02.amcndns.com (45.54.99.65) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns02.amcndns.com (2607:f740:e05a:4::1) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns02.amcndns.net (45.54.99.65) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns02.amcndns.net (2607:f740:e05a:4::1) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns03.amcndns.com (45.54.99.129) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns03.amcndns.com (2607:f740:e05a:8::1) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns03.amcndns.net (45.54.99.129) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns03.amcndns.net (2607:f740:e05a:8::1) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns04.amcndns.com (45.54.99.193) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns04.amcndns.com (2607:f740:e05a:c::1) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns04.amcndns.net (45.54.99.193) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning ns04.amcndns.net (2607:f740:e05a:c::1) answers REFUSED for 99.54.45.in-addr.arpa.
  • Warning The parent zone delegates to dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net, ns01.amcndns.com, ns01.amcndns.net, ns02.amcndns.com, ns02.amcndns.net, ns03.amcndns.com, ns03.amcndns.net, ns04.amcndns.com, ns04.amcndns.net but 99.54.45.in-addr.arpa itself lists dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net, dns4.p04.nsone.net, ns01.amcndns.com, ns01.amcndns.net, ns02.amcndns.com, ns02.amcndns.net, ns03.amcndns.com, ns03.amcndns.net, ns04.amcndns.com, ns04.amcndns.net. Make the two lists match.
  • Note 99.54.45.in-addr.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.

Records

Asked directly of dns4.p04.nsone.net (198.51.45.68), an authoritative server: no cache in between, so these are the live values.

PTR Reverse pointer

3600PTRns03.amcndns.com.
3600PTRns03.amcndns.net.
ANY query: refused politely (RFC 8482)
3600HINFO"RFC8482" ""

No records of type A, AAAA, CNAME, DNAME, NS, SOA, MX, TXT, CAA, HTTPS, SVCB, SRV, NAPTR, DS, DNSKEY, CDS, CDNSKEY, NSEC3PARAM, TLSA, SSHFP, LOC, HINFO, RP, URI, SPF, OPENPGPKEY, ZONEMD, CSYNC.

Resolution trace

  1. .asked i.root-servers.net 192.36.148.175.9 ms

    Referral to in-addr.arpa. signed (4 DS)

    • d.in-addr-servers.arpa 200.10.60.53 2001:13c7:7010::53
    • c.in-addr-servers.arpa 196.216.169.10 2001:43f8:110::10
    • f.in-addr-servers.arpa 193.0.9.1 2a13:27c0:30::1
    • a.in-addr-servers.arpa 199.180.182.53 2620:37:e000::53
    • b.in-addr-servers.arpa 199.253.183.183 2001:500:87::87
    • e.in-addr-servers.arpa 203.119.86.101 2001:dd8:6::101
  2. in-addr.arpa.asked a.in-addr-servers.arpa 199.180.182.5391 ms

    Referral to 45.in-addr.arpa. signed (1 DS)

    • z.arin.net 199.180.180.63 2001:500:f0::63
    • r.arin.net 199.180.180.63 2001:500:f0::63
    • u.arin.net 204.61.216.50 2001:500:14:6050:ad::1
    • x.arin.net 199.180.180.63 2001:500:f0::63
    • y.arin.net 192.82.134.30 2001:500:127::30
    • arin.authdns.ripe.net 193.0.9.10 2a13:27c0:30::10

    No glue for z.arin.net, r.arin.net, u.arin.net, x.arin.net, y.arin.net, arin.authdns.ripe.net: addresses looked up via a resolver.

  3. 45.in-addr.arpa.asked y.arin.net 192.82.134.306.9 ms

    Referral to 99.54.45.in-addr.arpa. unsigned delegation

    • dns1.p01.nsone.net 198.51.44.1 2620:4d:4000:6259:7:1:0:1
    • dns3.p01.nsone.net 198.51.44.65 2620:4d:4000:6259:7:1:0:3
    • ns02.amcndns.com 45.54.99.65 2607:f740:e05a:4::1
    • ns01.amcndns.com 45.54.99.1 2607:f740:e05a::1
    • ns03.amcndns.com 45.54.99.129 2607:f740:e05a:8::1
    • ns04.amcndns.com 45.54.99.193 2607:f740:e05a:c::1
    • ns04.amcndns.net 45.54.99.193 2607:f740:e05a:c::1
    • dns2.p01.nsone.net 198.51.45.1 2a00:edc0:6259:7:1::2
    • ns01.amcndns.net 45.54.99.1 2607:f740:e05a::1
    • dns4.p01.nsone.net 198.51.45.65 2a00:edc0:6259:7:1::4
    • ns02.amcndns.net 45.54.99.65 2607:f740:e05a:4::1
    • ns03.amcndns.net 45.54.99.129 2607:f740:e05a:8::1

    No glue for dns1.p01.nsone.net, dns3.p01.nsone.net, ns02.amcndns.com, ns01.amcndns.com, ns03.amcndns.com, ns04.amcndns.com, ns04.amcndns.net, dns2.p01.nsone.net, ns01.amcndns.net, dns4.p01.nsone.net, ns02.amcndns.net, ns03.amcndns.net: addresses looked up via a resolver.

  4. 99.54.45.in-addr.arpa.asked dns2.p01.nsone.net 198.51.45.15.9 ms

    Answer (authoritative):

    129.99.54.45.in-addr.arpa.3600PTRns03.amcndns.com.
    129.99.54.45.in-addr.arpa.3600PTRns03.amcndns.net.

    45.54.99.1 failed: REFUSED

    45.54.99.1 failed: REFUSED

    45.54.99.193 failed: REFUSED

Nameservers

Every address of every nameserver, asked for 99.54.45.in-addr.arpa's SOA. "Parent" means the 45.in-addr.arpa zone delegates to it; "zone" means 99.54.45.in-addr.arpa lists it itself.

NameserverListed inAddressStatusSerialTime
dns1.p01.nsone.netparent198.51.44.1 glueauthoritative166685570215 ms
2620:4d:4000:6259:7:1:0:1 glueauthoritative166685570215 ms
dns1.p04.nsone.netzone198.51.44.4authoritative166685570215 ms
2620:4d:4000:6259:7:4:0:1authoritative166685570215 ms
dns2.p01.nsone.netparent198.51.45.1 glueauthoritative16668557025.9 ms
2a00:edc0:6259:7:1::2 glueauthoritative166685570212 ms
dns2.p04.nsone.netzone198.51.45.4authoritative16668557026.1 ms
2a00:edc0:6259:7:4::2authoritative166685570212 ms
dns3.p01.nsone.netparent198.51.44.65 glueauthoritative166685570215 ms
2620:4d:4000:6259:7:1:0:3 glueauthoritative166685570215 ms
dns3.p04.nsone.netzone198.51.44.68authoritative166685570214 ms
2620:4d:4000:6259:7:4:0:3authoritative166685570214 ms
dns4.p01.nsone.netparent198.51.45.65 glueauthoritative16668557025.7 ms
2a00:edc0:6259:7:1::4 glueauthoritative166685570212 ms
dns4.p04.nsone.netzone198.51.45.68authoritative16668557025.6 ms
2a00:edc0:6259:7:4::4authoritative166685570212 ms
ns01.amcndns.comparent + zone45.54.99.1 glueREFUSED101 ms
2607:f740:e05a::1 glueREFUSED91 ms
ns01.amcndns.netparent + zone45.54.99.1 glueREFUSED95 ms
2607:f740:e05a::1 glueREFUSED91 ms
ns02.amcndns.comparent + zone45.54.99.65 glueREFUSED91 ms
2607:f740:e05a:4::1 glueREFUSED91 ms
ns02.amcndns.netparent + zone45.54.99.65 glueREFUSED96 ms
2607:f740:e05a:4::1 glueREFUSED93 ms
ns03.amcndns.comparent + zone45.54.99.129 glueREFUSED91 ms
2607:f740:e05a:8::1 glueREFUSED93 ms
ns03.amcndns.netparent + zone45.54.99.129 glueREFUSED90 ms
2607:f740:e05a:8::1 glueREFUSED91 ms
ns04.amcndns.comparent + zone45.54.99.193 glueREFUSED102 ms
2607:f740:e05a:c::1 glueREFUSED92 ms
ns04.amcndns.netparent + zone45.54.99.193 glueREFUSED90 ms
2607:f740:e05a:c::1 glueREFUSED92 ms

DNSSEC

99.54.45.in-addr.arpa isn't signed: no DS at the parent and no DNSKEY in the zone.

Hosts and reverse DNS

Every hostname the records point at, resolved to its addresses; each address's PTR (reverse DNS), with ✓ where the PTR name resolves back to the same address.

HostAddressReverse DNS (PTR)
dns1.p01.nsone.net
nameserver
198.51.44.1dns1.p01.nsone.net ✓
2620:4d:4000:6259:7:1:0:1dns1.p01.nsone.net ✓
dns1.p04.nsone.net
nameserver
198.51.44.4dns1.p04.nsone.net ✓
2620:4d:4000:6259:7:4:0:1dns1.p04.nsone.net ✓
dns2.p01.nsone.net
nameserver
198.51.45.1dns2.p01.nsone.net ✓
2a00:edc0:6259:7:1::2dns2.p01.nsone.net ✓
dns2.p04.nsone.net
nameserver
198.51.45.4dns2.p04.nsone.net ✓
2a00:edc0:6259:7:4::2dns2.p04.nsone.net ✓
dns3.p01.nsone.net
nameserver
198.51.44.65dns3.p01.nsone.net ✓
2620:4d:4000:6259:7:1:0:3dns3.p01.nsone.net ✓
dns3.p04.nsone.net
nameserver
198.51.44.68dns3.p04.nsone.net ✓
2620:4d:4000:6259:7:4:0:3dns3.p04.nsone.net ✓
dns4.p01.nsone.net
nameserver
198.51.45.65dns4.p01.nsone.net ✓
2a00:edc0:6259:7:1::4dns4.p01.nsone.net ✓
dns4.p04.nsone.net
nameserver
198.51.45.68dns4.p04.nsone.net ✓
2a00:edc0:6259:7:4::4dns4.p04.nsone.net ✓
ns01.amcndns.com
nameserver
45.54.99.1ns01.amcndns.com, ns01.amcndns.net ✓
2607:f740:e05a::1none
ns01.amcndns.net
nameserver
45.54.99.1ns01.amcndns.com, ns01.amcndns.net ✓
2607:f740:e05a::1none
ns02.amcndns.com
nameserver
45.54.99.65ns02.amcndns.com, ns02.amcndns.net ✓
2607:f740:e05a:4::1none
ns02.amcndns.net
nameserver
45.54.99.65ns02.amcndns.com, ns02.amcndns.net ✓
2607:f740:e05a:4::1none
ns03.amcndns.com
nameserver · PTR target
45.54.99.129ns03.amcndns.com, ns03.amcndns.net ✓
2607:f740:e05a:8::1none
ns03.amcndns.net
nameserver · PTR target
45.54.99.129ns03.amcndns.com, ns03.amcndns.net ✓
2607:f740:e05a:8::1none
ns04.amcndns.com
nameserver
45.54.99.193ns04.amcndns.com, ns04.amcndns.net ✓
2607:f740:e05a:c::1none
ns04.amcndns.net
nameserver
45.54.99.193ns04.amcndns.com, ns04.amcndns.net ✓
2607:f740:e05a:c::1none

Public resolvers

What four public resolvers answer right now, from their caches. Highlighted values differ from the authoritative answer: either a recent change they haven't picked up yet (the TTL says how long until they do), or, for A and AAAA, a CDN or geo-routed site handing each resolver location its own addresses.

ResolverPTR
Cloudflare 1.1.1.1ns03.amcndns.com.
ns03.amcndns.net.
TTL 3600
Google 8.8.8.8ns03.amcndns.com.
ns03.amcndns.net.
TTL 3600
Quad9 9.9.9.9ns03.amcndns.com.
ns03.amcndns.net.
TTL 3600
OpenDNS 208.67.222.222ns03.amcndns.com.
ns03.amcndns.net.
TTL 3600

Text dump

; DNS report for 129.99.54.45.in-addr.arpa (45.54.99.129)
; 2026-11-09 06:11:04 UTC, 186 queries in 3.39 s, zone 99.54.45.in-addr.arpa

;; FINDINGS
;  [WARN] ns01.amcndns.com (45.54.99.1) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns01.amcndns.com (2607:f740:e05a::1) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns01.amcndns.net (45.54.99.1) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns01.amcndns.net (2607:f740:e05a::1) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns02.amcndns.com (45.54.99.65) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns02.amcndns.com (2607:f740:e05a:4::1) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns02.amcndns.net (45.54.99.65) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns02.amcndns.net (2607:f740:e05a:4::1) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns03.amcndns.com (45.54.99.129) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns03.amcndns.com (2607:f740:e05a:8::1) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns03.amcndns.net (45.54.99.129) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns03.amcndns.net (2607:f740:e05a:8::1) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns04.amcndns.com (45.54.99.193) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns04.amcndns.com (2607:f740:e05a:c::1) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns04.amcndns.net (45.54.99.193) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] ns04.amcndns.net (2607:f740:e05a:c::1) answers REFUSED for 99.54.45.in-addr.arpa.
;  [WARN] The parent zone delegates to dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net, ns01.amcndns.com, ns01.amcndns.net, ns02.amcndns.com, ns02.amcndns.net, ns03.amcndns.com, ns03.amcndns.net, ns04.amcndns.com, ns04.amcndns.net but 99.54.45.in-addr.arpa itself lists dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net, dns4.p04.nsone.net, ns01.amcndns.com, ns01.amcndns.net, ns02.amcndns.com, ns02.amcndns.net, ns03.amcndns.com, ns03.amcndns.net, ns04.amcndns.com, ns04.amcndns.net. Make the two lists match.
;  [INFO] 99.54.45.in-addr.arpa isn't signed with DNSSEC, so resolvers can't tell forged answers from real ones.

;; RECORDS (authoritative, from dns4.p04.nsone.net (198.51.45.68))
129.99.54.45.in-addr.arpa.	3600	IN	PTR	ns03.amcndns.com.
129.99.54.45.in-addr.arpa.	3600	IN	PTR	ns03.amcndns.net.

;; TRACE
;  129.99.54.45.in-addr.arpa PTR
;  . @i.root-servers.net (192.36.148.17) 5.9 ms [NOERROR qr]: referral to in-addr.arpa.
in-addr.arpa.		NS	d.in-addr-servers.arpa.	; 200.10.60.53 2001:13c7:7010::53
in-addr.arpa.		NS	c.in-addr-servers.arpa.	; 196.216.169.10 2001:43f8:110::10
in-addr.arpa.		NS	f.in-addr-servers.arpa.	; 193.0.9.1 2a13:27c0:30::1
in-addr.arpa.		NS	a.in-addr-servers.arpa.	; 199.180.182.53 2620:37:e000::53
in-addr.arpa.		NS	b.in-addr-servers.arpa.	; 199.253.183.183 2001:500:87::87
in-addr.arpa.		NS	e.in-addr-servers.arpa.	; 203.119.86.101 2001:dd8:6::101
in-addr.arpa.	86400	IN	DS	54956 8 2 E0E2BF5CFBD66572CA05EC18267D91509BA6A9405AF05C3FD4141DFA45200C08
in-addr.arpa.	86400	IN	DS	63982 8 2 AAF4FB5D213EF25AE44679032EBE3514C487D7ABD99D7F5FEC3383D030733C73
in-addr.arpa.	86400	IN	DS	47054 8 2 5CAFCCEC201D1933B4C9F6A9C8F51E51F3B39979058AC21B8DF1B1F281CBC6F2
in-addr.arpa.	86400	IN	DS	53696 8 2 13E5501C56B20394DA921B51412D48B7089C5EB6957A7C58553C4D4D424F04DF
;  in-addr.arpa. @a.in-addr-servers.arpa (199.180.182.53) 91 ms [NOERROR qr]: referral to 45.in-addr.arpa.
45.in-addr.arpa.		NS	z.arin.net.	; 199.180.180.63 2001:500:f0::63
45.in-addr.arpa.		NS	r.arin.net.	; 199.180.180.63 2001:500:f0::63
45.in-addr.arpa.		NS	u.arin.net.	; 204.61.216.50 2001:500:14:6050:ad::1
45.in-addr.arpa.		NS	x.arin.net.	; 199.180.180.63 2001:500:f0::63
45.in-addr.arpa.		NS	y.arin.net.	; 192.82.134.30 2001:500:127::30
45.in-addr.arpa.		NS	arin.authdns.ripe.net.	; 193.0.9.10 2a13:27c0:30::10
45.in-addr.arpa.	86400	IN	DS	9136 8 2 97414863B7A0FDE713FB174990E9B43DE47467707010C01380743425EE6D146B
;  45.in-addr.arpa. @y.arin.net (192.82.134.30) 6.9 ms [NOERROR qr]: referral to 99.54.45.in-addr.arpa.
99.54.45.in-addr.arpa.		NS	dns1.p01.nsone.net.	; 198.51.44.1 2620:4d:4000:6259:7:1:0:1
99.54.45.in-addr.arpa.		NS	dns3.p01.nsone.net.	; 198.51.44.65 2620:4d:4000:6259:7:1:0:3
99.54.45.in-addr.arpa.		NS	ns02.amcndns.com.	; 45.54.99.65 2607:f740:e05a:4::1
99.54.45.in-addr.arpa.		NS	ns01.amcndns.com.	; 45.54.99.1 2607:f740:e05a::1
99.54.45.in-addr.arpa.		NS	ns03.amcndns.com.	; 45.54.99.129 2607:f740:e05a:8::1
99.54.45.in-addr.arpa.		NS	ns04.amcndns.com.	; 45.54.99.193 2607:f740:e05a:c::1
99.54.45.in-addr.arpa.		NS	ns04.amcndns.net.	; 45.54.99.193 2607:f740:e05a:c::1
99.54.45.in-addr.arpa.		NS	dns2.p01.nsone.net.	; 198.51.45.1 2a00:edc0:6259:7:1::2
99.54.45.in-addr.arpa.		NS	ns01.amcndns.net.	; 45.54.99.1 2607:f740:e05a::1
99.54.45.in-addr.arpa.		NS	dns4.p01.nsone.net.	; 198.51.45.65 2a00:edc0:6259:7:1::4
99.54.45.in-addr.arpa.		NS	ns02.amcndns.net.	; 45.54.99.65 2607:f740:e05a:4::1
99.54.45.in-addr.arpa.		NS	ns03.amcndns.net.	; 45.54.99.129 2607:f740:e05a:8::1
;  99.54.45.in-addr.arpa. @dns2.p01.nsone.net (198.51.45.1) 5.9 ms [NOERROR qr aa]: answer
129.99.54.45.in-addr.arpa.	3600	IN	PTR	ns03.amcndns.com.
129.99.54.45.in-addr.arpa.	3600	IN	PTR	ns03.amcndns.net.

;; NAMESERVERS (SOA asked of each address)
;  dns1.p01.nsone.net [parent]
;    198.51.44.1                             ok                        1666855702  15 ms
;    2620:4d:4000:6259:7:1:0:1               ok                        1666855702  15 ms
;  dns1.p04.nsone.net [zone]
;    198.51.44.4                             ok                        1666855702  15 ms
;    2620:4d:4000:6259:7:4:0:1               ok                        1666855702  15 ms
;  dns2.p01.nsone.net [parent]
;    198.51.45.1                             ok                        1666855702  5.9 ms
;    2a00:edc0:6259:7:1::2                   ok                        1666855702  12 ms
;  dns2.p04.nsone.net [zone]
;    198.51.45.4                             ok                        1666855702  6.1 ms
;    2a00:edc0:6259:7:4::2                   ok                        1666855702  12 ms
;  dns3.p01.nsone.net [parent]
;    198.51.44.65                            ok                        1666855702  15 ms
;    2620:4d:4000:6259:7:1:0:3               ok                        1666855702  15 ms
;  dns3.p04.nsone.net [zone]
;    198.51.44.68                            ok                        1666855702  14 ms
;    2620:4d:4000:6259:7:4:0:3               ok                        1666855702  14 ms
;  dns4.p01.nsone.net [parent]
;    198.51.45.65                            ok                        1666855702  5.7 ms
;    2a00:edc0:6259:7:1::4                   ok                        1666855702  12 ms
;  dns4.p04.nsone.net [zone]
;    198.51.45.68                            ok                        1666855702  5.6 ms
;    2a00:edc0:6259:7:4::4                   ok                        1666855702  12 ms
;  ns01.amcndns.com [parent+zone]
;    45.54.99.1                              REFUSED                               101 ms
;    2607:f740:e05a::1                       REFUSED                               91 ms
;  ns01.amcndns.net [parent+zone]
;    45.54.99.1                              REFUSED                               95 ms
;    2607:f740:e05a::1                       REFUSED                               91 ms
;  ns02.amcndns.com [parent+zone]
;    45.54.99.65                             REFUSED                               91 ms
;    2607:f740:e05a:4::1                     REFUSED                               91 ms
;  ns02.amcndns.net [parent+zone]
;    45.54.99.65                             REFUSED                               96 ms
;    2607:f740:e05a:4::1                     REFUSED                               93 ms
;  ns03.amcndns.com [parent+zone]
;    45.54.99.129                            REFUSED                               91 ms
;    2607:f740:e05a:8::1                     REFUSED                               93 ms
;  ns03.amcndns.net [parent+zone]
;    45.54.99.129                            REFUSED                               90 ms
;    2607:f740:e05a:8::1                     REFUSED                               91 ms
;  ns04.amcndns.com [parent+zone]
;    45.54.99.193                            REFUSED                               102 ms
;    2607:f740:e05a:c::1                     REFUSED                               92 ms
;  ns04.amcndns.net [parent+zone]
;    45.54.99.193                            REFUSED                               90 ms
;    2607:f740:e05a:c::1                     REFUSED                               92 ms

;; DNSSEC: unsigned

;; HOSTS
;  dns1.p01.nsone.net (nameserver)
;    198.51.44.1                             PTR dns1.p01.nsone.net (confirmed)
;    2620:4d:4000:6259:7:1:0:1               PTR dns1.p01.nsone.net (confirmed)
;  dns1.p04.nsone.net (nameserver)
;    198.51.44.4                             PTR dns1.p04.nsone.net (confirmed)
;    2620:4d:4000:6259:7:4:0:1               PTR dns1.p04.nsone.net (confirmed)
;  dns2.p01.nsone.net (nameserver)
;    198.51.45.1                             PTR dns2.p01.nsone.net (confirmed)
;    2a00:edc0:6259:7:1::2                   PTR dns2.p01.nsone.net (confirmed)
;  dns2.p04.nsone.net (nameserver)
;    198.51.45.4                             PTR dns2.p04.nsone.net (confirmed)
;    2a00:edc0:6259:7:4::2                   PTR dns2.p04.nsone.net (confirmed)
;  dns3.p01.nsone.net (nameserver)
;    198.51.44.65                            PTR dns3.p01.nsone.net (confirmed)
;    2620:4d:4000:6259:7:1:0:3               PTR dns3.p01.nsone.net (confirmed)
;  dns3.p04.nsone.net (nameserver)
;    198.51.44.68                            PTR dns3.p04.nsone.net (confirmed)
;    2620:4d:4000:6259:7:4:0:3               PTR dns3.p04.nsone.net (confirmed)
;  dns4.p01.nsone.net (nameserver)
;    198.51.45.65                            PTR dns4.p01.nsone.net (confirmed)
;    2a00:edc0:6259:7:1::4                   PTR dns4.p01.nsone.net (confirmed)
;  dns4.p04.nsone.net (nameserver)
;    198.51.45.68                            PTR dns4.p04.nsone.net (confirmed)
;    2a00:edc0:6259:7:4::4                   PTR dns4.p04.nsone.net (confirmed)
;  ns01.amcndns.com (nameserver)
;    45.54.99.1                              PTR ns01.amcndns.com, ns01.amcndns.net (confirmed)
;    2607:f740:e05a::1                       PTR none
;  ns01.amcndns.net (nameserver)
;    45.54.99.1                              PTR ns01.amcndns.com, ns01.amcndns.net (confirmed)
;    2607:f740:e05a::1                       PTR none
;  ns02.amcndns.com (nameserver)
;    45.54.99.65                             PTR ns02.amcndns.com, ns02.amcndns.net (confirmed)
;    2607:f740:e05a:4::1                     PTR none
;  ns02.amcndns.net (nameserver)
;    45.54.99.65                             PTR ns02.amcndns.com, ns02.amcndns.net (confirmed)
;    2607:f740:e05a:4::1                     PTR none
;  ns03.amcndns.com (nameserver; PTR target)
;    45.54.99.129                            PTR ns03.amcndns.com, ns03.amcndns.net (confirmed)
;    2607:f740:e05a:8::1                     PTR none
;  ns03.amcndns.net (nameserver; PTR target)
;    45.54.99.129                            PTR ns03.amcndns.com, ns03.amcndns.net (confirmed)
;    2607:f740:e05a:8::1                     PTR none
;  ns04.amcndns.com (nameserver)
;    45.54.99.193                            PTR ns04.amcndns.com, ns04.amcndns.net (confirmed)
;    2607:f740:e05a:c::1                     PTR none
;  ns04.amcndns.net (nameserver)
;    45.54.99.193                            PTR ns04.amcndns.com, ns04.amcndns.net (confirmed)
;    2607:f740:e05a:c::1                     PTR none

;; PUBLIC RESOLVERS
;  Cloudflare PTR   ns03.amcndns.com., ns03.amcndns.net.  ttl 3600
;  Google     PTR   ns03.amcndns.com., ns03.amcndns.net.  ttl 3600
;  Quad9      PTR   ns03.amcndns.com., ns03.amcndns.net.  ttl 3600
;  OpenDNS    PTR   ns03.amcndns.com., ns03.amcndns.net.  ttl 3600